Grooving machine



- 1,637,501 Aug. 2, 1 5. A. SLOCUM GROOVING MACHINE Filed April 19 1926 INVENTOR BEMMN/NA SLOCUN.

omrso ,srArss BENJAMIN A. sLooUM. or BIu nAM'ron,

Patented Aug. 2, 1927. a 4

1,637,501 FICE.

NEWVYORKQAS'SIGNOR To ANSCO rnorok rnozouors, Inc, or BINGHAMTON, NEW YORK. Y

enoovmo ACHINE.

Application filed April 19, 1926. "seriaino. 103,178.

My invention relates generally to a machine for placing grooves in certain; Inaterialsand is directed primarilytoan apparatus for grooving the edges of the protective paper used on photographic film cartridges, such grooves acting as light locks or protection for the edges of the sensitized 2 film wound on the spool with the protective paper. It will be understood however that my improved grooving machine is not lim-' ited to this particular use but may be advantageously applied in providing grooves in other materials and for other purposes. I

The primary object of my invention is to provide such a grooving machine which is automatic in its operation, which will perform the groovlng operation at high speed and which is provided, with adequate guidingmeans for accurately aligning the paper with the grooving means. I a 1 A second object is to provide novel grooving rollersthrough which the paperor other material to be grooved passes. I

Other objects and advantages in details of construction and operation will be apparent as the description proceeds, reference being had to the accompanying drawing, wherein likereference numerals indicate like parts. i j 1 I In the drawing:-' Figure 1 is a side view of my assembled machine. g

Figure 2 is an end view of a part thereof taken on the line 2-2 of Figure 1 and lookingiu the direction of the arrows.

Figure 3 is an end view of the part of the.

machine taken on the line 3+3 ofFigure 1 and looking in the direction, of the arrows.

Figure 4 is a detailview ofthe grooving rollers. I Figure 5 is an enlarged detail, partly in section, of a portion of the winding mechanism. 3 I I A base member 1 is provided and supports at one end an upstanding bearing member 2, tovwhich is secured a projecting shaft 8,

upon which is mounted a flange roll 4, wound with paper 5, or other material to be grooved. The upper end of the bearing 2 is provided with a pin 6 supportinga weight 7, or other suitable device, hanging over the roll of paper'5 in order that the same w ll not be unwound too rapidly. A supporting wing 8 is provided on the bracket onbearing' 2 and supp ts at its outer end a pm 9 11 1* der which the paper or other material 5 is The parts just described are conventional n form and hav'e'been illustrated diagram- I matically only.

There is provided centrally ofthe base 1,

two upstanding'side supports 10, provided with a reinforcing web 11 extending between them. Rotatable shafts 12 and 13 have hear ing in the upstanding supports 10. Secured to these shafts are the grooving rollers 14 and 15 which arepreferably of heavy metal or other material and have their surfaces highly polished. Adjacent either edge of the roller 14 is a groove 16 into which fits the circular ridges 17 carried by the roller 15; The grooves 16 and the ridges 17 are both V shaped as illustrated clearly in Figure 4; for forming the light lock groove on the film paper. Obviously, however, if other than a V shaped groove is desired in the material; thesegrooves and ridges of the rollers 14- and 15 may be formedto conform to the desired shape. 7 i

.The shaft 12 is extended beyond one of the guide supporting memberslO as at 18,

and upon this shaft are securely mounted the small and large pulleys 19 and 20 respecmeans may connect the small pulley 19 to an electric motor (not shown) or other source of power as desired whereby the shaft 12 will be rotated. The shaft 12 is provided just inside the left hand supporting member 10 in Figure 2 with a gear 21 which meshes with a gear 22 fixed to the shaft 13, wheretively. A belt or other form of driving g 3 I by upon rotation of the shaft. 12 by means Vided with laterally projecting wings 23 between the outer ends of which is supported a polished bar or pin 24 around which passes the paper or other material 5 as it is drawn under the pin 9 and through a slot 25 in the web 11. Also journaled in the wings 23 above the pin 24 and to the rear thereof, is a second pin 26 also smoothly polished and provided with guide flanges 27 (see Figure 3) between which passes the material 5. These flanges 27 guide the material 5 in accurate alignment with the roller 14 around which the material 5 now passes, and is then fedbetween rollers 14 and 15 at which point the grooving action takes place,

7 The end of the base 1 opposite the upstanding bearing 2, has another upstanding bearing or support 28, provided with a projecting shaft 29 carrying thereon a spool 30. adjust-ably aligned with the rollers 14: and 15, as by means of the pin 31 carried by the spool and engaging within the slot longitudinally of the shaft 29. A set screw 33 provides means for adjustably fixing the ,tion therewith'is a clutch face 38 abutting closely adjacent'the c utclrface 39'carried by the pulley 34:. A washer ofleather fabric or other suitable inateria l 4O encircles the shaft 39 betweenthese clutch faces. The clutch member 38 is prevented from endwise movement on the shaft'29 bymeans of the lock n'ut ll screw threaded thereon, and'between which nut and the end of the clutch member 38 is provided a tension spring e2 normally urging the clutch face 31 into engagement with the clutch face 39; V A driv ing belt 4:3 extends betweenthe large pulley 20 on the shaft 12 and'the pulley 34: on the shaft 29. I

From the foregoing, it will thus be understood that when the material to be grooved is threaded from the roll 4 under the bar or pin 9, around the pins 24 and 26, and to the *rollers 14 and 15,,it is started in any suit- 29. Upon applying power to the pulley 19,

it will be obvious that the rollers 14 and 15 will be rotated and due; to the belt connection 43 to the pulley El on the shaft- 29, the spool 80 will also be rotated to take up the material 5 as it comes from between the rollers 1 and 15. In order to take care of the varying'diameter of the spool 30, as

the material is wound upon it, the friction clutch or slip connection consisting of the clutch es 38 and 39' is provided. It will be understood that as the material builds up on the spool 30, the pulley 3% may rotate on theshaft 29 against the friction of the washer 40 and thetension of the spring 42'pressing against the clutch face 38. Hotmally however the friction betweenthe two clutch faces will be sufficient to rotate the shaft 29 through the pulley 34.

@f course many changes in details of construction and operation from construction shown and described herein maybe made without departing from the spirit or my invention. I do not therefore limit myself to the exact form shownother'than by the appended'claim,

I claim:-

[A grooving machine comprising a base, a supply spool and a take up spool thereon, rollers onsaid base between which a strip of material is adapted to pass from one spool to the other, V-shaped grooves in one of said rollers and similarly shaped ribs on the other roller adapted to fit in said grooves whereby V shaped grooves are formed in said material, driving means for said rollers and said take up spool, and a friction clutch between said take up spool and said driving means.

BENJAMIN A. SLOGUM. 

